have i become worse?

i feel like i've become a lot more mean on here lately, and even though my personality on this site is still mostly a persona i'm also afraid that some of this might leak into my actual life too. I particularly think this because a few days ago my dad thought I was acting a bit more negative than I used to be and I feel like that might've been a result of how I am on here
am I just overthinking this? do i have a problem? please tell me what you think
this post isn't really worded well but i hope it at least makes some sense